Life, and the Universe ... Global warming? Evolution or Intelligent Design? Renewable energy or nuclear power? Science versus religion? Historical fact, or myth? Can time go backwards? A wide-ranging blog about the intriguing "basic questions" of life and the universe, focused not on the various topics themselves but rather WHAT THE QUESTIONS ARE and HOW THEY CAN OR SHOULD BE ANSWERED -- scientifically and rationally, or otherwise.

Sunday, November 01, 2009

NASA Swift satellite sees furthest ever cosmic explosion

NASA reported on 23 April 2009 that their Swift satellite and a international team of astronomers detected a ten-second gamma-ray burst from a star that died when the universe was only 630 million years old, or less than five percent of its present age.

The event, dubbed GRB 090423, is the most distant cosmic explosion ever seen.

In line with other posts in this blog about basic questions, this event sheds further light (no pun intended) on the age and size of the universe.

To quote: "Swift was designed to catch these very distant bursts," said Swift lead scientist Neil Gehrels at NASA's Goddard Space Flight Center in Greenbelt, Md. "The incredible distance to this burst exceeded our greatest expectations -- it was a true blast from the past."

"The burst most likely arose from the explosion of a massive star," said Derek Fox at Pennsylvania State University. "We're seeing the demise of a star -- and probably the birth of a black hole -- in one of the universe's earliest stellar generations."

Read the NASA article to view a short animation of a gamma-ray burst and find out more.

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About Me

Tony Austin ... Trained in science and engineering, still tend to approach life from a scientist's or engineer's viewpoint, but over the years have picked up skills in sales/marketing, journalism and other non-technical areas. Taught Chemistry / Math / Science in high schools. Joined IBM Australia in 1970, retired in 1995, since then have been an "independent consultant" [an oxymoron]. So now I have over four decades in the IT business, still enjoying it enormously - except, that is, for the same silly mistakes being repeated time and time again in function and interfaces, won't we ever learn? ... Decided to retire from IT consulting at end of 2013 after 44 years in the industry, closed Asia/Pacific Computer Services then, but am still regularly writing technology articles as an industry observer.